Step 1. Download and install the APK
Android may show strong warnings because LumosWS is installed from the browser, not Play Store. That is standard side-load behavior. Continue only if the file came from getlumos.app.
- Wait until the LumosWS APK finishes downloading.
- Open the downloaded file from the browser notification or from the Downloads folder.
- If Android blocks the install, tap Settings and turn on Allow from this source for your browser.
- Go back to the installer, tap Install, then tap Open.
Path: Settings -> Apps -> Special app access -> Install unknown apps -> your browser.